Punching-machine.



10.682,686.' Patented sept. I7, 190|.

A F. HALL.

PUNCHING MACHINE.

(Lppumion med my 1o, 1901.) (No Model.) 3 Sheets-#Sheet l. 4

No. 682,686. Patented Sept. I7, I90I.

` B. F. HALL.

PUNCHING MACHINE.

(Application led May 10, 1901.)

(No M'odel.) 3 Sheets--Sheet 2.

IIl/Il/IlIVI/l/l/l/D vl/11111111111111110074 s cams uniss co.rHoTaLlmo.. wAsHiNu'rcN. n

Patented Sept. I7, |90I. 6. F. HALL. PUNGHING MACHINE.

(Application file d May 10, 1901.)

3 Sheets-Sheet 3.

(No Model.)

*mi ESSEE.

i UNITED STATE-s PATENT Cruce.

BENJAMIN F. I-IALL, OF SALEMLMASSACHUSETTS, ASSIGNOR 0F ONE-HALF TO ZINAGOODELL, OF SAME PLACE.

PUNol-lilac-MAcl-HNE SPECIFIEGATION-forming part of Letters Patent No.682,686, dated September 1'7, 1901. Application ledMay 10, 1901. ySerial No. 59,565. (No model.)

To all whom t may concern.-

Be it known that I, BENJAMIN F. HALL, a citizen of the United States,residing at Salem, in the county of Essex and State of Massachusetts,have invented new and useful Improvements in PnnchingfMachines, of whichthe following is a specification.

This invention relates to improvements in punching-machines particularlyadapted for punching or perforating ornamental shoe portions-such, forinstance, as foXings, lacepieces, Vamps, tips or toe-caps, or otherornamental parts of boots and shoes. It is also applicable for thepurpose of perforating other articles or materials as may be desired.

The invention is carried out as follows, reference being had to theaccompanying drawings, wherein- Figure 1 represents a side elevation ofthe machine, showing a portion .of the frame broken away. Fig. 2represents a top plan view of Fig. 1. Fig. 3 represents a verticalsection of the machine. Fig. 4 represents a horizontal section on theline fi 4, shown in Fig. 3. Fig. 5 represents an enlarged detail endelevation of the die-holder bar and presser-foot bar, showing thepresser-foot, work-support, die-plate, die-plate clampingdisk, andfeed-point and its carrier in section. Fig. 7 represents an enlargedcrosssection on the line 7 7, shown in Fig. 2. Fig. 8 represents anenlarged cross-section on the line 8 8, shown in Fig. 2. Fig. 9represents an enlarged side elevation of a portion of the feed-pointcarrier and feed-point, and Fig. 10 represents a piece of leather orothermaterial punched or perforated by my improved machine.

Similar letters refer to similar parts wherever they occur on thedrawings. Y Y -f i l In the drawings, A represents the base portion ofthe frame of the machine, integral with which is cast the gooseneckportion A. To the top of the base portion A is suitably secured thework-supporting plate B.

C is the rotary driving-shaft, journaled in bearings in the frameportion A. e To one end of said shaft is secured, preferably, a conepulley D, to which a rotary motion is imparted by means of belt-power,as usual. E is a diiferent parts of the hand-wheel or balance-wheelsecured to the opposite end of the shaft C for the purpose of adjustingthe positions ofthe various working` parts of -themachine previous to 55starting the same, so as to enable the work to be placed Ain properposition previous to the commencement of the punching or perforatin'goperation.

To the shaft VO is secured an eccentric F, 6o

tically in bearings ct d', forming parts of the 7o forward end of thegooseneck A', shown in Figs. 1, 3, and 5.

H is the die, secured in a suitable manner to a die-holder attached tothe lower end of the die-holder bar, as is common in devices of thiskind. The said die is made of aforxn or construction to make the desiredperforations 'in the goods I, a representation of which is shown in Fig.10. The construction of said die will of course be varied according tothe 8o design of the perforations to be made in the goods.

By the construction above mentioned it will be seen that a verticalreciprocating motion is imparted to the die and its die-holder bar fromthe rotary shaft C during the operation of the machine. f

The feed device for automatically and intermittently feeding the goodsto the die duringthepunching or perforating operation 9o is what isusually termed a four-motion feed and is constructed as follows: Itconsists of a feed-point carrier or lever K, pivoted onan eccentric-pinL, adjustably secured in a suitable manner in bearings in the gg frameportion A. Said eccentric L projects through a slotted perforation k inthe lever K, as shown in Figs. 1, 3, and 9. On the rotary shaft 'C aresecured two cams-namely,

M and N, (shown in Fig. 1,) the former servroo ing the purpose ofimparting a feed motion to the feed-point carrier K and its 4serrated Tothe front end of the lever G 65 feed-point K', and the cam N serving thepurpose of raising the said feed-point during the feed of the material.A spring O, connected to said feed-point carrier and to the forwardportion of the frame A, serves the purpose of moving the feed-pointcarrier opposite to the line of feed and downward during the release ofthe respective cams M N from the rear portion of the feed-point carrierK, as is usual in four-motion feeds. By adjusting the position of theeccentric L the position of the feed-point K' can be regulated relativeto the upper surface of the Worksupport B, as may be needed from time totime to compensate for the wear of said feedpoint or its connectedparts. In connection with such four-motion feed I use a feed-regulatingdevice consisting of an adjustable lever P, pivoted at p to the underside of the Work-plate B, as shown in Figs. 2, 1t, and 8. To the frontend of said lever is connected a headed screw p", adjustable in a curvedslot b in the work-plate B and adapted to be secured to the latter afterbeing adjusted by means of a thumb-nut P'. (Shown in Fig. 8.) Theopposite end of the said lever P is pivotally connected to afeed-regulator rod or bar P", the inner end of which serves as a stop tolimit the outward motion of the feed-point carrier after its releasefrom the cam M and while it is being moved by the spring 0 to itsoutward position.

Q is the presser-foot bar, vertically movable in the bearings a a' inthe outer end of the gooseneck A', as shown in Figs. 5 and 6. To saidpresser-foot bar is attached a collar q, which is held in contact withthe upper end of the bearing a' by means of a yielding spring R. (Shownin Figs. 5 and 6, as well as in dotted lines in Fig. l.)

To the lower end of the presser-foot bar Q is adjustably secured a rodQ', to the lower end of which is journaled the rotary presserfoot Q".(Shown in Figs. 5 and G.) The rotary presser-foot Q" is held fromcontact with the upper surface of the work-plate B, as shown in Fig. 6,so as to allow the material to be readily introduced between saidWorkplate and presser-foot and also for the purpose of preventing anundue pressure by the presser-foot onto the goods during the feeding andpunching operation, thus enabling the work to be adjusted readily duringthe punching operation.

In a circular perforation in the work-supporting table B is located anannular dieplate S, which is supported upon the frame A and serves toreceive the imprint of the die during the punching orperforatingoperation. Said die-plate is preferably made of brass, and as a portionof its uppersurface becomes worn or defaced it may readily be adjustedby turning it more or less around its axis and securing it in suchadjusted position. The

inner surface S' of the said die-plate S is made V-shaped in section, asshown in Figs. 6 and 7, and on top of such V-shaped inner edge islocated a circular clamping-plate T, having a conical edge adapted torest upon the V-shaped inner edge of the circular dieplate ring S, asshown in Fig. 7.

t is a fastening-screw going loosely through a central perforation inthe clamping-plate T and screwed into a screw-threaded perforation inthe base A, as shown in Fig. 7, and by this means the die-plate may befirmly secured in its adjusted position relative to the die. Should theupper surface of said dieplate become worn or defaced by thepunching-die, it may readily be removed, turned over, and secured insuch reversed position by means of the clamping-plate T andfasteningscrew t, thus materially increasing the life of said die-plate.

In connection with the Work-supporting table B, I use a suitable gage,against which the edge of the work is guided during the punchingoperation, as is common in devices of this kind.

The operation of this my improved punching or perforating machine is asfollows: The article to be perforated is placed upon the table B,withits edge against a gage thereon, and after the presser-foot is raised itis allowed to drop onto the article by the iniiuence of the spring R.The machine is then set in operation by imparting a rotary motion to thedriving-shaft C, causing the die-holder bar and its die to be verticallyreciprocated for the purpose of punching or perforating the article andcausing the feed device to intermittently feed the said article thedesired distance, while the die is raised above the work, and so onduring the operation of the machine.

What I wish to secure and claim is- I. In a punching or perforatingmachine', in combination a frame A, and gooseneck A',

by Letters Patent a vertically-reciprocating die and die-carrier,-

a spring-pressed rotary presser-foot, a fourmotion feed device, areversible adjustable circular die-plate ring and a clamping-plate forsecuring said ring in its adjusted position substantially as and for thepurpose set forth.

2. In a punching or perforating machine, in combination, a rotarydriving-shaft, a kneelever actuated by an eccentric on said shaft andconnected to a reciprocating die-carrier, a pair or' cams secured tosaid shaft, a pivoted feed-carrier actuated by said cam and a spring,and an adjustable feed-regulating device, consisting of an adjustablepivoted lever having one of its ends connected to a bar serving as astop against the forward end of the feed-carrier substantially as andfor the purpose set forth.

3. In a punching or perforating machine, in combination avertically-reciprocatin g dieholder bar and die, a work-support, an adjustable die-plate ring and a spring-pressed rotary presser-foot arrangedupon a yielding presser-foot bar, having secured to it a collar orprojection q, for limiting its downward 682,686 f si motion so as tonormally hold said presserof the feed-point relative to the top ofthe rfoot from contact with the table and feed- Work-plate substantially asherein set forth point of the feed device, substantially as anddescribed. v

herein seb forth and described. In testimony whereof I have hereunto setI5 5 4. In a punching or perforating machine, my hand in presence oftwo-subscribing Witin combination a Verticallyweciprocating dienesses.

carrier and die, a spring-actuated presserfoot and a four-motionfeed-point carrier actuated by a spring and a pair of cams and piv. lWitnesses:

BENJAMIN F. HALL Io otally hung upon an eccentric-pin capable of ALBANANDRII,

` rotary adjustment for adjusting the position THEKLA ANDREN.-

